313387457 has 2 divisors, whose sum is σ = 313387458. Its totient is φ = 313387456.

The previous prime is 313387441. The next prime is 313387471. The reversal of 313387457 is 754783313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 282206401 + 31181056 = 16799^2 + 5584^2 .

It is a cyclic number.

It is not a de Polignac number, because 313387457 - 2⁴ = 313387441 is a prime.

It is not a weakly prime, because it can be changed into another prime (313317457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156693728 + 156693729.

It is an arithmetic number, because the mean of its divisors is an integer number (156693729).

Almost surely, 2^313387457 is an apocalyptic number.

It is an amenable number.

313387457 is a deficient number, since it is larger than the sum of its proper divisors (1).

313387457 is an equidigital number, since it uses as much as digits as its factorization.

313387457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 313387457 is about 17702.7528085323. The cubic root of 313387457 is about 679.2461780590.

The spelling of 313387457 in words is "three hundred thirteen million, three hundred eighty-seven thousand, four hundred fifty-seven".